Can I study custom courses on iPhone? Norefund17 Updated October 21, 2016 05:40 Follow Yes you can. To do so, you will have to add your custom course to "studying" on your computer first. Related articles Is iKnow! iPhone App free? Where did a course I had in my Home go? It disappeared. Can I use iKnow! on iPhone or iPad? What is "Contract Renewal Bonus"? I cannot download any course using Kindle Fire. Error message says "Not Found". What should I do? Comments 0 comments Article is closed for comments.